250 East 83rd Street Begins Ascent on the Upper East Side of,180 East 88th tower tops out at 524 feet, set to be tallest,45 East 22nd Street Tops Out, Officially Tallest Skyscraper,200 East 83rd Street — Robert A.M. Stern Architects, LLP,200 East 83rd Street — Robert A.M. Stern Architects, LLP,